不同的采食量对种鸡增重、成活率及均匀度的影响

Effect of different feed intakes on weight gain, survival rate and evenness of breeders

试验旨在研究不同的采食量对种鸡增重、成活率、均匀度的影响。将7周龄7 950只种鸡随机分成3组。基础饲粮组A(♂)和B(♀)为对照组,试验组分别在基础饲粮上增加2 g(A+2组)和减少2 g(A-2组);增加3 g(B+3组)和减少3 g(B-3组)。结果表明:A+2组的平均增重显著高于对照组(P<0.05),B+3组平均增重显著低于对照组(P<0.05)。A-2组和B-3组的平均体重均匀度显著低于对照组(P<0.05)。A+2组和B+3组的成活率显著低于对照组(P<0.05)。研究表明,在种鸡的前期饲养中,饲料水平逐渐降低有助于种鸡稳定健康生长。

The experiment was to study the effect of different feed intakes on weight gain, survival rate, and evenness of breeders. 7 950 breeders of 7-week-old were randomly divided into three groups. The basic diet group A(♂) and group B(♀) were control groups. The experimental group increased 2 g(A+2 group) and decreased 2 g(A-2 group) on the basic diet;increased 3 g(B+3 group) and decreased 3 g(B-3 group). The results showed that the average weight gain of A+2 group was significantly higher than that of control group(P<0.05), and the average weight gain of B+3 group was significantly lower than that of control group(P<0.05). The average weight uniformity of A-2 and B-3 groups was significantly lower than that of control group(P<0.05). The survival rate of A+2 and B+3 groups was significantly lower than that of the control group(P<0.05). It can be seen that in the early breeding of breeders, the gradual decrease of feed level will help the stable and healthy growth of breeders.